Well I go there and it's a big place. I'm sneaking and sniping my way to the back and all the sudden I get this message that the Master Vampire is slain and to report back. What? So I decide to go on forward and check it out. I get to the end and one guy is there that I snipe (improved dwarven crossbow). I go on in and I find the Master Vampire lying there dead, along with the Blackblood Marauder chief and four other guys. Apparently the vampire and marauders are not compatible and killed each other. All I had to do was loot everything.
Easiest quest I had in a while.
Anyone else have something like this happen?